Terminal-type battery structure

Abstract

The utility model provides a terminal type battery structure body, which is provided with a battery and an electrode terminal, the electrode terminal is jointed and fixed on an electrode of the battery at a joint part, the electrode terminal is provided with a bending part which can be bent towards the side surface of the battery and extends towards an opposite electrode, the whole front surface of the electrode terminal is covered with an insulating part, and the insulating part is arranged on the front surface of the electrode terminal. The insulating member has a region having a large adhesive force at a portion covering at least the front surface of the joining portion of the electrode terminal, and has a region having a small adhesive force or no adhesive force at a portion covering at least the front surface of the bending portion of the electrode terminal. According to the terminal type battery structure body disclosed by the utility model, the insulativity in the transportation process is not influenced, and the terminal type battery structure body is easy to assemble and high in product yield during assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to a terminal type battery structure. BACKGROUND

[0002] In recent years, with the development of portable electronic devices, the demand for batteries as power sources for driving these electronic products is increasing, and the target use environment is also complex and diverse. For example, in the application scenarios of high-performance structural battery packs with special user requirements (soldering, etc.), sometimes the product needs to be transported and supplied in the form of a terminal type battery structure.

[0003] The existing terminal type battery structure mostly has a battery and an electrode terminal, the electrode terminal is fixed on the electrode of the battery at the joint, and the electrode terminal has a bending part that can be bent to the side of the battery and extend to the opposite electrode. In order to ensure insulation, an insulating tape or an insulating resin part is attached to the electrode and the electrode terminal. In addition, in order to avoid the insulating tape or the insulating resin part from falling off during transportation and causing a short circuit, the insulating tape or the insulating resin part needs to have a large adhesive force.

[0004] Therefore, when a user uses the terminal type battery structure with the attached insulating tape or insulating resin part, the user needs to peel off the insulating tape or insulating resin part first and then re-bend the electrode terminal or perform re-assembly processing such as soldering. However, since the insulating tape or insulating resin part has a large adhesive force and is not easy to peel off, the assembly is difficult. Moreover, there is even a risk of indentation damage to the terminal. In addition, the outermost layer of the battery of such a terminal type battery structure is usually a paper shell, and when the insulating tape or insulating resin part is peeled off, there is a risk of damage to the appearance of the product (damage to the paper cylinder) or deformation. These all increase the product failure rate, which objectively leads to an increase in production cost. SUMMARY

[0005] Technical problem to be solved

[0006] In view of the above prior art, the technical problem to be solved by the utility model is to provide a terminal type battery structure that does not affect the insulation during transportation and is easy to assemble and has a high product yield during assembly.

[0007] Technical means for solving the technical problem

[0008] To solve the above technical problems, the terminal type battery structure of one embodiment of the present application comprises a battery and an electrode terminal, the electrode terminal is fixed to the electrode of the battery at the joint, the electrode terminal has a bending part that can be bent to the side of the battery and extend to the opposite electrode, the front surface of the electrode terminal is entirely covered by an insulating part, the insulating part has a region with high adhesive force at the position of the front surface covering the joint of the electrode terminal, and the insulating part has a region with low or no adhesive force at the position of the front surface covering the bending part of the electrode terminal.

[0009] According to the terminal type battery structure of the above embodiment, the insulating part is a sectional adhesive part, the region with high adhesive force can be a glue-covered region, and the region with no adhesive force can be a glue-uncovered region.

[0010] According to the terminal type battery structure of the above embodiment, a tearable part can be arranged at the position between the position of the front surface of the insulating part covering the joint of the electrode terminal and the position of the front surface of the insulating part covering the bending part of the electrode terminal.

[0011] According to the terminal type battery structure of the above embodiment, the tearable part can be arranged in the region with low or no adhesive force.

[0012] According to the terminal type battery structure of the above embodiment, the width of the insulating part covering the front surface of the bending part of the electrode terminal can be greater than the width of the remaining part of the insulating part, so that the insulating part covers at least part of the back surface of the electrode terminal as well as the front surface of the electrode terminal.

[0013] According to the terminal type battery structure of the above embodiment, the insulating part can have a hinge structure at the part with wider width, the fixed end of the hinge structure covers the front surface of the electrode terminal, and the movable end of the hinge structure covers at least part of the back surface of the electrode terminal.

[0014] According to the terminal type battery structure of the above embodiment, the width of the movable end of the hinge structure can be the same as the width of the fixed end.

[0015] According to the terminal type battery structure of the above embodiment, the insulating part can have a region with high adhesive force at the part with wider width.

[0016] According to the terminal type battery structure of the above embodiment, the insulating part can be insulating paper.

[0017] According to the terminal type battery structure of the above embodiment, the battery can be a cylindrical battery, and the outermost layer of the cylindrical battery is a paper shell.

[0018] Effects of the utility model

[0019] According to the utility model, the insulating part has the region with large adhesion force at the position of at least covering the front surface of the bending part of the electrode terminal, so that the user can easily peel off the insulating part at the position of at least covering the front surface of the bending part of the electrode terminal when using, and the subsequent bending or soldering and other re-assembly processing can be conveniently and quickly carried out, and the risk of causing the terminal to be recessed or damaged and deformed due to external force can be avoided, so that the product is easy to assemble and has high yield during assembly. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A schematic view for showing the structure of the terminal type battery structure of the prior art.

[0021] Figure 2 A schematic view for showing the structure of the terminal type battery structure of the prior art.

[0022] Figure 3 A schematic view for showing the structure of the terminal type battery structure of the prior art.

[0023] Reference signs

[0024] 1: battery

[0025] 1A: electrode

[0026] 1B: shell breakage

[0027] 2: electrode terminal

[0028] 2A: joint part

[0029] 2B: bending part

[0030] 3: insulating tape or insulating resin part

[0031] 4, 5: insulating part

[0032] 4A, 5A: region with large adhesion force

[0033] 4B, 5B: region with small adhesion force or no adhesion force

[0034] 4C, 5C: easy-to-tear part

[0035] 5D: hinge shaft

[0036] 5E: fixed end

[0037] 5F: movable end DETAILED DESCRIPTION

[0038] The embodiments described below are only examples and can take various forms. Furthermore, the drawings disclosed in the present specification are schematic and the proportions of the various parts of the drawings are not necessarily to scale. Like reference numerals designate corresponding or like components throughout the drawings. The same reference numerals or symbols in different drawings represent components or parts or members or elements or steps that perform the same function or act.

[0039] In the present specification, the electrode is a concept including a positive electrode and / or a negative electrode of a battery, and the electrode terminal is a concept including a positive electrode terminal and / or a negative electrode terminal. The electrode terminal is fixedly joined to the electrode of the battery at a joining portion, and with this state as a reference, when facing the electrode of the battery and the electrode terminal, the face directly opposite the visual direction is defined as the "front face", and the face directly opposite the "front face" is defined as the "back face". At this time, the front face of the electrode terminal and the front face of the electrode are on the same side, and the back face of the electrode terminal and the front face of the electrode are on opposite sides. In addition, the "front face" and the "back face" are only relative definitions based on the above reference system, and in other reference systems, the "front face" can be the back face, and the "back face" can be the front face.

[0040] In addition, in the present specification, the "side face" of the battery refers to a face adjacent to the face on which the electrode is not present.

[0041] Figure 1 is a schematic view showing the structure of a conventional terminal-type battery structure. In this view, Figure 1 (a) of FIG. 1 is a perspective view of a state in which no insulating tape or insulating resin member is attached, Figure 1 (b) of FIG. 1 is a plan view of a state in which an insulating tape or insulating resin member is attached, Figure 1 (c) of FIG. 1 is an elevation view of a state after the insulating tape or insulating resin member is peeled off. As shown in Figure 1 (a) of FIG. 1, the conventional terminal-type battery structure is provided with a battery 1 and an electrode terminal 2, the electrode terminal 2 is fixedly joined to the electrode 1A of the battery 1 at a joining portion 2A, and the electrode terminal 2 has a bent portion 2B that can be bent to the side face of the battery 1 and extended to the opposite electrode as needed. Note that, Figure 1 only the corresponding configuration and structure on the one electrode side are specifically shown in (a) of FIG. 1, and the same configuration and structure can be provided on the other electrode side as needed, or different configuration and structure can be provided on the other electrode side as needed.

[0042] As shown in Figure 1As shown in (b), to ensure insulation, insulating tape or insulating resin component 3 is attached to electrode 1A and electrode terminal 2. Furthermore, to prevent the insulating tape or insulating resin component 3 from falling off during transportation and causing a short circuit, the insulating tape or insulating resin component 3 needs to have strong adhesion.

[0043] like Figure 1 As shown in (c), when using a terminal battery structure with insulating tape or insulating resin component 3 attached, the user needs to peel off the insulating tape or insulating resin component 3 before re-bending or soldering the bent portion 2B of the electrode terminal for reassembly. However, due to the strong adhesive force of the insulating tape or insulating resin component 3, it is not easy to peel off, making assembly difficult. Moreover, it may even lead to the risk of dent damage to the terminal 2. Furthermore, the outermost layer of the battery 1 in this type of terminal battery structure is usually a paper shell. When peeling off the insulating tape or insulating resin component 3, there is a risk of product appearance damage (paper tube damage) or deformation, as shown in the shell damage 1B. All of these factors increase the product defect rate and objectively lead to an increase in production costs.

[0044] Next, utilize Figure 2 , Figure 3 A terminal battery structure according to one embodiment of the present invention will be described. Figure 2 This is a top view illustrating one embodiment of the terminal battery structure of the present invention. Figure 3 This is a schematic diagram illustrating a modified example of the insulating component in the terminal battery structure of this utility model.

[0045] For structures identical to those in the prior art, the diagram is omitted. One embodiment of the terminal battery structure of this utility model includes a battery 1 and electrode terminals 2. The electrode terminals 2 are joined and fixed to the electrode 1A of the battery 1 at a joint 2A. The electrode terminals 2 have a bent portion 2B that can be bent toward the side of the battery 1 and extend toward the opposite electrode. Figure 2As shown, in the present embodiment, the entire front surface of the electrode terminal 2 is covered with the insulating member 4, the insulating member 4 has a region 4A with high adhesion at least at the portion covering the front surface of the joint portion 2A of the electrode terminal 2, and the insulating member 4 has a region 4B with low or no adhesion at least at the portion covering the front surface of the bent portion 2B of the electrode terminal 2. The width of the insulating member 4 can be wider than the width of the electrode terminal 2, as long as the insulation required during transportation can be ensured, and there is no particular limitation. It should be noted that, in the present specification, the length direction of the electrode terminal 2 or the insulating member 4 refers to the direction substantially the same as the direction in which the electrode terminal 2 extends from the joint portion 2A to the bent portion 2B, and the width direction of the electrode terminal 2 or the insulating member 4 refers to the direction substantially orthogonal to the direction in which the electrode terminal 2 extends from the joint portion 2A to the bent portion 2B (the same applies hereinafter). By having the region 4A with high adhesion at least at the portion covering the front surface of the joint portion 2A of the electrode terminal 2, the insulating member 4 can be prevented from falling off during transportation and causing a short circuit. By having the region 4B with low or no adhesion at least at the portion covering the front surface of the bent portion 2B of the electrode terminal 2, the insulating member 4 covering at least the portion of the front surface of the bent portion 2B of the electrode terminal 2 can be easily peeled off by the user during use, and the insulating member 4 covering at least the portion of the front surface of the joint portion 2A of the electrode terminal 2 can remain even if it is not peeled off, without affecting the subsequent bending or reassembly processing such as soldering, and thus the risk of terminal indentation or damage deformation due to external force can be avoided, and the product is easy to assemble and has a high assembly yield.

[0046] In the present embodiment, the battery 1 is a cylindrical battery. The cylindrical shape generally refers to a circular cylindrical shape, but is not limited thereto, and includes a non-standard circular cylindrical shape, a cylindrical shape with a non-circular bottom surface, and the like, as long as the effects of the present application are not affected. As the battery 1, for example, a secondary battery can be used. From the perspective of the carrier, the battery 1 can be a lithium battery, a nickel-hydrogen battery, a fluorine ion battery, an air battery, or the like. From the perspective of the electrolyte, the battery 1 can be a liquid battery, a semi-solid battery, a solid battery, or the like. From the perspective of the internal structure of the battery, the battery 1 can be a jelly-roll type, a stacked type, or the like. As a non-limiting example, in the terminal type battery structure of the present embodiment, the battery can be a cylindrical battery, and the outermost layer of the cylindrical battery can be a paper housing. In this way, the effects of the present application can be better achieved.

[0047] In the terminal type battery structure of the present embodiment, the insulating member 4 can be an insulating paper. In this way, the effects of the present application can be better achieved, on the one hand, the cost is low, and on the other hand, the insulating member is easy to peel off.

[0048] The insulating component 4 described above has a region 4A with high adhesive strength and a region 4B with low or no adhesive strength. "High adhesive strength" and "low adhesive strength" are relative concepts. The adhesive strength of the region 4A with high adhesive strength can be the same as, greater than, or less than that of existing insulating tapes or resin components, as long as it prevents the insulating tape or resin component from detaching during transportation and causing a short circuit; there are no other restrictions. The adhesive strength of the region 4B with low adhesive strength is simply less than that of the region 4A with high adhesive strength, so that it can be easily peeled off by the user; there are no other restrictions. As a means of simultaneously having a region 4A with high adhesive strength and a region 4B with low or no adhesive strength in the insulating component 4, segmented adhesive backing can be used, for example. For example, a portion of the insulating component 4 is coated and dried with a known adhesive with high adhesive strength, while another portion is coated and dried with a known adhesive with low adhesive strength. From the perspective of simple process and low cost, for example, a portion of the insulating component 4 can be coated and dried with existing known adhesives to form an adhesive-coated area, while another portion can be left uncoated to form an uncoated area.

[0049] In the terminal battery structure of this embodiment, such as Figure 2 As shown, an easy-tear portion 4C can be provided at a position between the front portion of the insulating component 4 that at least covers the joint portion 2A of the electrode terminal 2 and the front portion of the insulating component 4 that at least covers the bent portion 2B of the electrode terminal 2. This makes it easier to peel off the insulating component 4 covering at least the front portion of the bent portion 2B of the electrode terminal 2, facilitating subsequent bending, soldering, or other reassembly processes. The location of the easy-tear portion 4C is not particularly limited; it can be provided in one or multiple locations, and can be provided in areas with strong adhesion 4A or areas with weak or no adhesion 4B. From the perspective of further ease of peeling, the easy-tear portion 4C is preferably provided in areas with weak or no adhesion 4B. An example of the easy-tear portion 4C is a tear line. This tear line can be formed using a processing tool such as a serrated die.

[0050] Next, utilize Figure 3 A modified example of the insulating component in the terminal-type battery structure of this utility model will be described. Unless otherwise stated, Figure 3 The components / structures not mentioned in the shown variations can be applied to the specific examples. Figure 2 The description of the embodiments shown is as follows.

[0051] exist Figure 2In the illustrated embodiment, the width of the insulating member 4 is substantially uniform. Figure 3 In the illustrated modification, the width of the insulating member 5 covering the front surface of the electrode terminal 2 at the bent portion 2B can be greater than the width of the remaining portion of the insulating member 5, so that the insulating member 5 covers both the front surface of the electrode terminal 2 and at least a portion of the back surface of the electrode terminal 2. Thus, the insulation can be further improved.

[0052] For example, in the illustrated embodiment, the width of the insulating member 5 can be greater at the portion covering the back surface of the electrode terminal 2 than at the portion covering the front surface of the electrode terminal 2. Figure 3 In the illustrated modification, the portion of the insulating member 5 covering the back surface of the electrode terminal 2 can have a hinge structure composed of a fixed end 5E, a hinge shaft 5D, and a movable end 5F. The fixed end 5E of the hinge structure covers the front surface of the electrode terminal 2, and the movable end 5F of the hinge structure covers at least a portion of the back surface of the electrode terminal 2. Note that the hinge shaft 5D is not necessarily a separate member, but indicates the concept of the movable end 5F rotating about the hinge shaft 5D to form the hinge structure. As a non-limiting example, when an insulating paper is used as the insulating member 5, a sawtooth-shaped mold or the like can be used as a processing tool to form the hinge shaft 5D, thereby facilitating the hinge operation.

[0053] In the illustrated modification, the width of the movable end 5F of the hinge structure can be the same as the width of the fixed end 5E. Thus, on the one hand, the front and back surfaces of the electrode terminal 2 can be simultaneously and uniformly wrapped, thereby improving the insulation, and on the other hand, the mass production of the insulating member 5 can be facilitated, thereby improving the production efficiency and reducing the cost.

[0054] In the illustrated modification, the portion of the insulating member 5 having a greater width can have a region 5A with a greater adhesive force. Thus, the front and back surfaces of the electrode terminal 2 can be simultaneously and uniformly wrapped more stably, and the insulating tape or the insulating resin member can be prevented from falling off during transportation and causing a short circuit. In addition, an easy-to-tear portion 5C can be provided for further easy peeling. The position of the easy-to-tear portion 5C is not particularly limited, and one or more easy-to-tear portions 5C can be provided. The easy-to-tear portion 5C can be provided in the region 5A with a greater adhesive force or in a region 5B with a smaller or no adhesive force.

[0055] The above describes some embodiments of the present application, but is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present application.

[0056] The advantages and improvements of the present application will be readily understood by those skilled in the art upon reading the foregoing description, and thus the scope of the present application is not limited by the above-described typical examples and specific details. Accordingly, various changes can be made to the present application without departing from the spirit or scope of the general inventive concept defined by the appended claims and their equivalents.

Claims

1. A terminal type battery structure, characterized by comprising: The battery has an electrode terminal, The electrode terminal is fixed to the electrode of the battery at the joint part, the electrode terminal has a bending part that can be bent to the side of the battery and extend to the opposite electrode, The insulating part covers the front surface of the electrode terminal, The insulating part has a region with high adhesive force at the part covering the front surface of the joint part of the electrode terminal, and has a region with low or no adhesive force at the part covering the front surface of the bending part of the electrode terminal.

2. The terminal type battery structure according to claim 1, characterized by The insulating part is segmented adhesive, the region with high adhesive force is an adhesive-covered region, and the region with low or no adhesive force is an adhesive-free region.

3. The terminal type battery structure according to claim 1 or 2, characterized by An easy-to-tear part is arranged between the part of the insulating part covering the front surface of the joint part of the electrode terminal and the part of the insulating part covering the front surface of the bending part of the electrode terminal.

4. The terminal type battery structure according to claim 3, characterized by The easy-to-tear part is arranged in the region with low or no adhesive force.

5. The terminal type battery structure according to claim 1 or 2, characterized by The width of the insulating part covering the front surface of the bending part of the electrode terminal is greater than the width of the remaining part of the insulating part, so that the insulating part covers the front surface of the electrode terminal and at least part of the back surface of the electrode terminal.

6. The terminal type battery structure according to claim 5, characterized by The wider part of the insulating part has a hinge structure, the fixed end of the hinge structure covers the front surface of the electrode terminal, and the movable end of the hinge structure covers at least part of the back surface of the electrode terminal.

7. The terminal type battery structure according to claim 6, characterized by The width of the movable end of the hinge structure is the same as the width of the fixed end.

8. The terminal type battery structure according to claim 5, characterized by The wider part of the insulating part has a region with high adhesive force locally.

9. The terminal type battery structure according to claim 1 or 2, characterized by The insulating part is insulating paper.

10. The terminal type battery structure according to claim 1 or 2, characterized by The battery is a cylindrical battery, and the outermost layer of the cylindrical battery is a paper shell.

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